西安地区油菜防冻保苗技术初探

Preliminary Study on Freezing-Proof and Seedling Preservation Technology of Rapeseed in Xi’an

摘要: 近几年来，由于气候的复杂多变，西安市冬春季节极易出现极端低温天气，严重影响了油菜正常的生长发育。特别是越冬期的极端低温冻害导致部分田块大量死苗，严重影响了油菜的产量。因此确保油菜安全越冬，成为栽培技术的关键。笔者通过几年的试验示范，总结出油菜防冻保苗的技术措施，以期对油菜种植户提供技术指导。

Abstract: In recent years, due to the complex and changeable climate, extreme cold weather is very easy to occur in winter and spring in Xi’an, which seriously affects the normal growth and development of rape. In particular, the extreme freezing injury during the overwintering period caused a large number of dead seedlings in some fields, which seriously affected the yield of rape. Therefore, to ensure the safety of rape overwintering has become the key to cultivation technology. Through several years of experiment and demonstration, the author summarized the technical measures of freezing-proof and seedling preservation of rape, in order to provide technical guidance to rape growers.